SC28L91 Philips Semiconductors, SC28L91 Datasheet - Page 35

• Manufacturer Part Number: SC28L91
• Description: 3.3V-5.0V Universal Asynchronous Receiver/Transmitter (UART)
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2000 Sep 22
NOTE: DACKN low requires two rising edges of X1 clock after CSN is low.
3.3V–5.0V Universal Asynchronous
Receiver/Transmitter (UART)
DTACKN
X1/CLK
(a) INPUT PINS
(b) OUTPUT PINS
IACKN
D0–D7
INTRN
OP0–OP7
IP0–IP6
WRN
RDN
Figure 8. Interrupt Cycle Timing (68XXX mode)
t
PS
t
t
CSC
DD
OLD DATA
Figure 9. Port Timing
t
DAL
35
t
DCR
t
t
PH
CSD
t
PD
t
DAH
t
DAT
NEW DATA
t
DF
SD00135
SD00149
Product specification
SC28L91